Why is there difference between the data cursor value and array value

Hi,

I want to know why is there a difference between the cursor value obtained of an image and array value of a channel of an image.

Pls guide me.

Thanks

[Ghulam]

Changing the x & y giving the same result

But why is it like this?

[darova]

Can you please attach entire script so i could analyze it?

[Ghulam]

I = imread('2.jpg');
C = rgb2hsv(I);
C2 = C(:,:,2);
figure('Name','Channel 2');
imshow(C2)

Here it is.

[darova]

This result looks like exactly on your picture

BUt your picture is gray so actual (RGB) color of it is (0.7724 0.7724 0.7724)

[Ghulam]

Thanks Darova for your reply,

Actually I wanted to know why is the x and y values differently represented in the picture as its opposite to the x,y values in the command line.

In pic x,y = 1120,840

While on command line x,y = 840,1120

This is what i wanted to know.

[darova]

Because position of your cursor is XY data but data of the image is (row,column)

X is column (changes in horizontal direction)

Y is row (changes in vertical direction)

[Turlough Hughes]

You should read the following documenation:

Link

In particular, the first paragarph under the heading Intrinsic Coordinates refers to your question.